I am red/green colorblind myself and have a set of isochromatic slides that date back to the 50's. They contain a pair of glasses like the old 3D glasses that literally do this same exact thing. My dentist uses a piece of tinted glass that does something similar and makes reds and greens stand out.

They may have narrowed down the exact properties to make it better, but this tech is *at least* 60 years old.

***edit*** Yeah, they've just narrowed down the specific wavelengths that *pop*. It's not exactly snake oil here, but it ain't exactly new either. A refinement at best.

So if I understand correctly, It allows you to perceive a difference between red and green, but not necessarily experience those as two totally different colors the way normies do? I'd imagine the latter would require some kind of brain tweaking since you just don't get that stimulus in the eye.

That's probably a fair assessment. The problem with my colorblindness is being di-chromatic instead of tri-chromatic. I'm lacking a massive number of the cones that detect red, but not all of them. So intense reds or greens are easy to pick out, dim lighting makes it impossible.

Interesting trade-offs include better night vision (not sure if causation or correlation) and traditional camo doesn't work very well on colorblind people (we key in more on shapes and camo never *quite* looks like. The new digital stuff might as well be a flashing neon sign).

There's one neighbourhood in Syracuse called Tipp Hill that's historically been an Irish ghetto. It has one stoplight where the green light is on top and red is on the bottom. I always wondered when someone with red-green color blindness is going to run that red.

Personally I have more trouble with red and orange when it comes down to it, especially the blinkies. Green lights usually look white actually, so I have more trouble telling green lights from incandescent street lights.

I tend to stop at blinking yellows at night, I literally can't tell them from blinking reds until I'm just about right under them.

This may sound weird, but I'd be very interested in the opposite of this. A pair of glasses that will (accurately) make it look the way it would if you have colourblindness. I do a lot of design work, and would be great to be able to preview stuff the way it will actually be seen. I know there are a bunch of plugins to simulate on a screen, but that doesn't help much for print, or for live previewing of webpages, apps, across a multitude of devices.

A pair of simply tinted lenses might do it. It'd just be a matter of determining the right tint.